For the physician seeing a patient with CFIDS, it is useful to measure level of activity and ability to function with a simple instrument on every visit. This will document clinical improvement or its absence, note medication effects, and serve as a useful marker to the disability analyst. Moreover, it will help communicate that the disability and limitations claimed have been observed and taken seriously by the physician. Doctors dislike filling out tedious disability claims; their job is medical, not legal. But it is part of the physician’s responsibility, and having good documentation over a period of time makes the process much easier.
(Source: The Doctor’s Guide to Chronic Fatigue Syndrome, by David S. Bell, M.D.)